What is the basic difference between simple diffusion and facilitated diffusion across a cell membrane?

An example of shunt producing disorder would be

Name the Five areas of study in which biologists are involved

Which of the following is not a true statement? Answers: Carbohydrate from food is especially easy for the body to store as fat. Protein is used to build muscles in response to exercise. Alcohol delivers calories and encourages fat storage.

Which statement best describes how Channel and carrier proteins in the plasma membrane are similar

Which of the following is an example of homologous structures? A. Whale hip bones. B. Embryos of fish and birds both make gill slits. C. Mice and chicken differ by only 25 amino acids when they make hemoglobin protein. D.

Which material will displace a volume of water? all of them cork and wax iron, lead, and aluminum none of them Which material will displace a volume of water less than its own volume?

Why is mitosis responible for for growth, repair, and maintence

Explain one way in which a hormone can prevent contraception

1) Which of the following explains why a bone in a bird's wing is homologous to a bone in a lizards leg? A) The bones in the two species provide for the same type of motion.

Do plants provide an important contribution in shapingof the environment?